adding docker sandbox flags to 0.14.1 bazelrc (#104)

*  adding docker sandbox flags to 0.14.1 bazelrc

diff --git a/bazelrc/bazel-0.14.1.bazelrc b/bazelrc/bazel-0.14.1.bazelrc
index eeb2e35..b2b63a1 100644
--- a/bazelrc/bazel-0.14.1.bazelrc
+++ b/bazelrc/bazel-0.14.1.bazelrc
@@ -30,6 +30,8 @@
 # These flags are duplicated rather than imported from (for example)
 # %workspace%/configs/ubuntu16_04_clang/1.0/toolchain.bazelrc to make this
 # bazelrc a standalone file that can be copied more easily.
+# These flags should only be used as is for the rbe-ubuntu16-04 container
+# and need to be adapted to work with other toolchain containers.
 build:remote --host_javabase=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:jdk8
 build:remote --javabase=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:jdk8
 build:remote --crosstool_top=@bazel_toolchains//configs/ubuntu16_04_clang/1.0/bazel_0.14.1/default:toolchain
@@ -92,3 +94,17 @@
 build:results-local --remote_cache=remotebuildexecution.googleapis.com
 build:results-local --remote_timeout=3600
 build:results-local --bes_results_url="https://source.cloud.google.com/results/invocations/"
+
+# The following flags are only necessary for local docker sandboxing
+# with the rbe-ubuntu16-04 container. Use of these flags is still experimental.
+build:docker-sandbox --host_javabase=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:jdk8
+build:docker-sandbox --javabase=@bazel_toolchains//configs/ubuntu16_04_clang/1.0:jdk8
+build:docker-sandbox --crosstool_top=@bazel_toolchains//configs/ubuntu16_04_clang/1.0/bazel_0.14.1/default:toolchain
+build:docker-sandbox --experimental_docker_image=gcr.io/cloud-marketplace/google/rbe-ubuntu16-04@sha256:59bf0e191a6b5cc1ab62c2224c810681d1326bad5a27b1d36c9f40113e79da7f
+build:docker-sandbox --spawn_strategy=docker
+build:docker-sandbox --strategy=Javac=docker
+build:docker-sandbox --strategy=Closure=docker
+build:docker-sandbox --genrule_strategy=docker
+build:docker-sandbox --define=EXECUTOR=remote
+build:docker-sandbox --experimental_docker_verbose
+build:docker-sandbox --experimental_enable_docker_sandbox